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EP0920240A3 - A high-frequency energy supply means, and a high-frequency eletrodeless discharge lamp device - Google Patents

A high-frequency energy supply means, and a high-frequency eletrodeless discharge lamp device Download PDF

Info

Publication number
EP0920240A3
EP0920240A3 EP98122476A EP98122476A EP0920240A3 EP 0920240 A3 EP0920240 A3 EP 0920240A3 EP 98122476 A EP98122476 A EP 98122476A EP 98122476 A EP98122476 A EP 98122476A EP 0920240 A3 EP0920240 A3 EP 0920240A3
Authority
EP
European Patent Office
Prior art keywords
frequency
energy supply
eletrodeless
supply means
discharge lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98122476A
Other languages
German (de)
French (fr)
Other versions
EP0920240B1 (en
EP0920240A2 (en
Inventor
Akira Hochi
Mamoru Takeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0920240A2 publication Critical patent/EP0920240A2/en
Publication of EP0920240A3 publication Critical patent/EP0920240A3/en
Application granted granted Critical
Publication of EP0920240B1 publication Critical patent/EP0920240B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/044—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by a separate microwave unit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/62—Lamps with gaseous cathode, e.g. plasma cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J63/00—Cathode-ray or electron-stream lamps
    • H01J63/08—Lamps with gas plasma excited by the ray or stream
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency AC, or with separate oscillator frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/84—Lamps with discharge constricted by high pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Electromagnetism (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

A high-frequency energy supply device has a group of side resonators which are electrically connected in a practically annular form, and supply high-frequency energy using resonant high-frequency electromagnetic fields generated in the center portion; and a plurality of high-frequency coupling part for coupling a plurality of high frequency energies propagated from a plurality of high-frequency propagation paths to said group of side resonators; wherein a plurality of high frequencies coupled to said group of side resonators from said plurality of high-frequency coupling means have phases and/or frequencies different from each other.
EP98122476A 1997-11-28 1998-11-26 A high-frequency energy supply means for a high-frequency eletrodeless discharge lamp device Expired - Lifetime EP0920240B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP327776/97 1997-11-28
JP32777697 1997-11-28
JP32777697 1997-11-28

Publications (3)

Publication Number Publication Date
EP0920240A2 EP0920240A2 (en) 1999-06-02
EP0920240A3 true EP0920240A3 (en) 2000-01-05
EP0920240B1 EP0920240B1 (en) 2004-08-11

Family

ID=18202861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122476A Expired - Lifetime EP0920240B1 (en) 1997-11-28 1998-11-26 A high-frequency energy supply means for a high-frequency eletrodeless discharge lamp device

Country Status (5)

Country Link
EP (1) EP0920240B1 (en)
KR (1) KR19990045674A (en)
CN (1) CN1218979A (en)
DE (1) DE69825546T2 (en)
TW (1) TW430855B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010012617A (en) * 1998-03-16 2001-02-26 마츠시타 덴끼 산교 가부시키가이샤 Electrodeless discharge energy supply apparatus and electrodeless discharge lamp device
JP2002100493A (en) * 2000-09-26 2002-04-05 Toshiba Lighting & Technology Corp Electrodeless discharge lamp device
TWI408723B (en) * 2005-06-03 2013-09-11 Ceravision Ltd Lamp
TW201042872A (en) * 2009-05-27 2010-12-01 Arbl Co Ltd Wireless power transmission system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5482876A (en) * 1977-12-15 1979-07-02 Mitsubishi Electric Corp Fluorescent lamp without electrode
US4749915A (en) * 1982-05-24 1988-06-07 Fusion Systems Corporation Microwave powered electrodeless light source utilizing de-coupled modes
US4792732A (en) * 1987-06-12 1988-12-20 United States Of America As Represented By The Secretary Of The Air Force Radio frequency plasma generator
US4954755A (en) * 1982-05-24 1990-09-04 Fusion Systems Corporation Electrodeless lamp having hybrid cavity
US5144206A (en) * 1991-09-10 1992-09-01 Gte Products Corporation Electrodeless HID lamp coupling structure with integral matching network
US5227698A (en) * 1992-03-12 1993-07-13 Fusion Systems Corporation Microwave lamp with rotating field
EP0684629A1 (en) * 1994-05-24 1995-11-29 Osram Sylvania Inc. Electrodeless high intensity discharge lamp energized by a rotating electric field
JPH10189270A (en) * 1996-11-01 1998-07-21 Matsushita Electric Ind Co Ltd High frequency energy supply means, and high frequency electrodeless discharge lamp device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537477A1 (en) * 1995-10-09 1997-04-10 Bosch Gmbh Robert Dielectric resonator and use
TW359847B (en) * 1996-11-01 1999-06-01 Matsushita Electric Ind Co Ltd High frequency discharge energy supply means and high frequency electrodeless discharge lamp device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5482876A (en) * 1977-12-15 1979-07-02 Mitsubishi Electric Corp Fluorescent lamp without electrode
US4749915A (en) * 1982-05-24 1988-06-07 Fusion Systems Corporation Microwave powered electrodeless light source utilizing de-coupled modes
US4954755A (en) * 1982-05-24 1990-09-04 Fusion Systems Corporation Electrodeless lamp having hybrid cavity
US4792732A (en) * 1987-06-12 1988-12-20 United States Of America As Represented By The Secretary Of The Air Force Radio frequency plasma generator
US5144206A (en) * 1991-09-10 1992-09-01 Gte Products Corporation Electrodeless HID lamp coupling structure with integral matching network
US5227698A (en) * 1992-03-12 1993-07-13 Fusion Systems Corporation Microwave lamp with rotating field
EP0684629A1 (en) * 1994-05-24 1995-11-29 Osram Sylvania Inc. Electrodeless high intensity discharge lamp energized by a rotating electric field
JPH10189270A (en) * 1996-11-01 1998-07-21 Matsushita Electric Ind Co Ltd High frequency energy supply means, and high frequency electrodeless discharge lamp device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 003, no. 108 (M - 072) 11 September 1979 (1979-09-11) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 12 31 October 1998 (1998-10-31) *

Also Published As

Publication number Publication date
EP0920240B1 (en) 2004-08-11
EP0920240A2 (en) 1999-06-02
DE69825546D1 (en) 2004-09-16
DE69825546T2 (en) 2004-12-30
TW430855B (en) 2001-04-21
KR19990045674A (en) 1999-06-25
CN1218979A (en) 1999-06-09

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